Toe lasting machine

By using fixed jaws to fix the semi-finished product in the front support machine, and using the slidingly connected indenter and sweeper for precise processing, the problem of inaccurate manual positioning in the prior art affecting the processing quality, achieving higher processing quality and operation convenience.

CN120130732APending Publication Date: 2025-06-13TAIZHOU BAOLITE SHOES INDAL
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Patent Information

Application Number
CN202510342663.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-03-21
Publication Date
2025-06-13

AI Technical Summary

Technical Problem

The front-help machine under the prior art needs to be manually positioned before tightening the semi-finished product, and inaccurate position can easily affect the processing quality.

Method used

A front-loading machine is designed to fix the semi-finished product with fixed jaws and process it through a slidingly connected indenter and sweeper to ensure the accurate position of the semi-finished product during processing.

Benefits of technology

Through the design of the fixing jaws, the stable fixation and precise processing of the semi-finished products are achieved, and the processing quality and the operation convenience of the equipment are improved.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to the technical field of shoe manufacturing, in particular to a toe lasting machine which comprises a workbench, a toe lasting seat is arranged on the workbench and corresponds to a semi-finished product in shape, a pressing head and a sweeping knife are further arranged on the workbench and correspond to the toe lasting seat, and the pressing head is slidably connected with the workbench and slides in the direction perpendicular to the workbench. The pressing head is arranged on an upper seat of the toe lasting seat and used for extruding a semi-finished product, the sweeping knife is arranged beside the toe lasting seat and used for binding the semi-finished product, a tightening assembly is further arranged on the workbench, the tightening assembly is arranged on the upper side of the sweeping knife, the tightening assembly is in sliding connection with the workbench, and the tightening assembly is used for tightening the semi-finished product from the two sides and the front end of the semi-finished product; a plurality of fixed clamping jaws driven by an air cylinder are arranged beside the front upper seat, a fixed space is arranged between the front upper seat and the fixed clamping jaws, semi-finished products can stretch into the fixed space, the fixed clamping jaws are arranged around the front upper seat, and the fixed clamping jaws can clamp the semi-finished products in the fixed space. And semi-finished product positioning can be helped to improve the machining quality.
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Description

Technical Field

[0001] The present invention relates to the technical field of footwear manufacturing, and more particularly to a front lasting machine. Background Art

[0002] In the process of shoe material processing, the front lasting of shoes is an important link. Previously, the shoe head was usually lasted manually. With the continuous progress of industry, the front lasting machine has replaced manual lasting. The front lasting machine is a mechanical device in shoe production, mainly used for manufacturing the front part of shoes. After the shoe head is fixed, the shoe head is shaped by cooperating with a sweeping knife and a pressing head.

[0003] Under the prior art, the front lasting machine usually sets a pressing head on the upper side of the semi-finished product, sets a sweeping knife on the lower side of the semi-finished product, and sets a tightening component corresponding to the semi-finished product. After the semi-finished product is tightened, processing is carried out. However, before each tightening, the semi-finished product needs to be manually positioned and placed by workers. If the position is inaccurate, it is easy to affect the processing and the product quality. Summary of the Invention

[0004] To solve the problem that under the prior art, the front lasting machine usually sets a pressing head on the upper side of the semi-finished product, sets a sweeping knife on the lower side of the semi-finished product, and sets a tightening component corresponding to the semi-finished product. After the semi-finished product is tightened, processing is carried out. However, before each tightening, the semi-finished product needs to be manually positioned and placed by workers. If the position is inaccurate, it is easy to affect the processing and the product quality, the present application provides a front lasting machine, and the specific scheme is as follows.

[0005] A front lasting machine includes a workbench, a front lasting seat is arranged on the workbench, the front lasting seat is arranged corresponding to the shape of the semi-finished product, a pressing head and a sweeping knife are also arranged corresponding to the front lasting seat on the workbench, the pressing head is slidably connected to the workbench and slides along the direction perpendicular to the workbench, the pressing head is arranged on the upper seat of the front lasting seat and is used for extruding the semi-finished product, the sweeping knife is arranged beside the front lasting seat and is used for lasting the semi-finished product, a tightening component is also arranged on the workbench, the tightening component is arranged on the upper side of the sweeping knife, the tightening component is slidably connected to the workbench, and the tightening component is used for tightening the semi-finished product from both sides and the front end of the semi-finished product; A plurality of fixed jaws driven by cylinders are arranged beside the front lasting seat, a fixed space is arranged between the front lasting seat and the fixed jaws, the fixed space is for the semi-finished product to extend into, the fixed jaws are arranged around the front lasting seat, and the fixed jaws can clamp the semi-finished product at the fixed space.

[0006] By adopting the above technical solutions, the front lasting machine can effectively fix and process semi-finished products. The cooperation between the front lasting seat and the fixed clamping jaws can stably hold the semi-finished products without manual positioning, ensuring accurate position without deviation during the processing. At the same time, the pressure head can slide in the vertical direction and apply pressure to the semi-finished products, thus ensuring the smooth progress of the lasting operation. The design of the sweeping knife enables the lasting action to be completed by pushing from both sides of the semi-finished products, improving work efficiency and quality, enhancing the operation convenience of the entire equipment and the qualified rate of products.

[0007] Optionally, the front lasting seat is slidably connected to the workbench and driven by a cylinder, and the front lasting seat slides in a direction perpendicular to the workbench.

[0008] By adopting the above technical solutions, the front lasting seat is slidably connected to the workbench and driven by a cylinder, enabling the front lasting seat to slide in a direction perpendicular to the workbench. This design can realize the height adjustment of the front lasting seat, so as to adapt to semi-finished shoe uppers of different thicknesses, improving the application range and flexibility of the equipment.

[0009] Optionally, the tightening assembly includes an arc-shaped tightener. The arc-shaped tightener is elastic and can deform. The arc-shaped tightener is slidably connected to the workbench. The tightening assembly further includes a pushing cylinder and a clamping cylinder. Both the pushing cylinder and the clamping cylinder are fixedly installed on the workbench. The piston rod of the pushing cylinder is fixedly connected to the arc-shaped tightener and connected to the middle of the arc-shaped tightener. The clamping cylinders are arranged on both sides of the arc-shaped tightener, and the arc-shaped tightener can push the arc-shaped tightener to deform towards the middle.

[0010] By adopting the above technical solutions, the arc-shaped tightener has elasticity and deformation ability, can flexibly adapt to semi-finished products of different shapes, and ensures a more fitting and stable tightening process. The arc-shaped tightener is slidably connected to the workbench. With the action of the pushing cylinder, effective restraint on the semi-finished products can be realized from the middle, enhancing the tightening effect. At the same time, the clamping cylinders are arranged on both sides of the arc-shaped tightener, further strengthening the pressing force on the semi-finished products, preventing displacement or deformation during the operation, and thus improving production efficiency and product quality.

[0011] Optionally, the sweeping knife is arranged between the arc-shaped tightener and the front lasting seat. The sweeping knife is arranged on both sides of the arc-shaped tightener. The sweeping knife is rotatably connected to the workbench and driven by a motor, and the sweeping knife can push the lasting from both sides of the semi-finished products.

[0012] By adopting the above technical solutions, the sweeping knife is located on both sides of the arc-shaped tightener and can push the lasting from both sides of the semi-finished products, realizing uniform force application and improving the lasting quality.

[0013] Optionally, a pressing cylinder is provided on the workbench corresponding to the pressing head. The pressing cylinder is fixedly connected to the workbench, and the piston rod of the pressing cylinder is fixedly connected to the pressing head. The pressing cylinder can push the pressing head to move.

[0014] By adopting the above technical solution, the setting of the pressing cylinder enables the pressing head to accurately move towards the semi-finished product and apply pressure, thereby ensuring that the semi-finished product is firmly fixed on the front shoe seat and reducing the displacement of the semi-finished product during processing.

[0015] Optionally, the pressing head includes a pressing seat and a head body. The pressing seat is arranged at one end close to the pressing cylinder. The pressing seat is slidably connected to the head body. A spring is arranged between the pressing seat and the head body. One end of the spring is fixedly connected to the pressing seat, and the other end of the spring is fixedly connected to the head body. The spring has a tendency to push the head body away from the pressing seat.

[0016] By adopting the above technical solution, since the head body can slide, it can automatically adjust its position according to the actual shape of the semi-finished product during the pressing process, thereby improving the adaptability to semi-finished products of different thicknesses or shapes and ensuring a more uniform and reliable pressing effect. At the same time, the function of the spring can also absorb part of the impact force, reduce the vibration influence that may occur during the operation of the equipment, and improve the overall operation stability.

[0017] Optionally, the pressing head further includes an electric push rod. One end of the electric push rod is fixedly connected to the piston rod of the pressing cylinder, and the other end of the electric push rod is fixedly connected to the pressing seat. The electric push rod can push the pressing seat to move away from the pressing cylinder.

[0018] By adopting the above technical solution, the setting of the electric push rod can perform secondary pressing on the semi-finished product, and the secondary pressing can further increase the stability during shoe lacing.

[0019] Optionally, the pressing cylinder is electrically connected to the sweeping knife. When the sweeping knife starts to act, the pressing cylinder pushes the pressing head towards the semi-finished product. The electric push rod is also electrically connected to the sweeping knife. When the sweeping knife action ends, the electric push rod pushes the pressing seat to move away from the pressing cylinder.

[0020] By adopting the above technical solution, the pressing cylinder is electrically connected to the sweeping knife. When sweeping the knife, the semi-finished product is pressed to stabilize the semi-finished product and reduce the displacement during shoe lacing, further improving the product quality. The sweeping knife is also electrically connected to the electric push rod. When the sweeping knife is completed, the semi-finished product can be pressed again by the electric push rod to increase the fitting degree of the shoe tip.

[0021] Optionally, a contact switch is further arranged in the pressing seat. The contact switch is electrically connected to the electric push rod. When the head body touches the contact switch, the electric push rod can push the pressing seat to move away from the pressing cylinder for the second time.

[0022] By adopting the above technical solution, a contact switch is arranged in the pressing seat. When the hardness of the shoe tip is relatively high, the contact switch can be triggered, and a compensation pressure is applied at the end stage of processing, further increasing the versatility.

[0023] Optionally, a positioning assembly is further arranged on the workbench. The positioning assembly is arranged on the lower side of the front vamp seat. The positioning assembly includes a positioning seat and a positioning cylinder. The positioning cylinder is fixedly connected to the workbench, and the piston rod of the positioning cylinder is fixedly connected to the positioning seat. The positioning seat is arranged corresponding to the shape of the semi-finished product and is used for the semi-finished product to be embedded. The positioning cylinder can push the positioning seat to move towards the front vamp seat.

[0024] By adopting the above technical solution, the positioning seat matches the shape of the semi-finished product, enabling the semi-finished product to be accurately embedded in the positioning seat, thereby effectively preventing the position deviation of the semi-finished product during processing. At the same time, the use of the positioning cylinder realizes the automatic adjustment of the positioning seat relative to the front vamp seat, improves the operation efficiency and accuracy of the equipment, and ensures the stability and consistency of the semi-finished product in the entire shoe-lacing process.

[0025] In summary, the present application has at least the following beneficial effects: The present application solves the problem that in the prior art, the front vamp machine usually sets a pressing head on the upper side of the semi-finished product, sets a sweeping knife on the lower side of the semi-finished product, and sets a tightening assembly corresponding to the semi-finished product. After tightening the semi-finished product, processing is carried out. However, before each tightening, the semi-finished product needs to be manually positioned and placed by workers. Inaccurate positioning is likely to affect the processing and the product quality. The present application fixes the semi-finished product through the setting of fixed jaws and processes the semi-finished product through the fixed jaws during processing, thereby improving the stability during processing, reducing the situation where the semi-finished product shifts during processing and affects shoe-lacing, and improving the product quality. Description of the Drawings

[0026] Figure 1 is a perspective view of Embodiment 1.

[0027] Figure 2 is Figure 1 a partial enlarged view of A in

[0028] Figure 3 is a sectional view of Embodiment 1.

[0029] Figure 4 is a sectional view of the positioning assembly and the guide frame in Embodiment 2.

[0030] Figure 5 is a sectional view of the positioning assembly in Embodiment 2.

[0031] Description of the Reference Numerals: 1. Workbench; 11. Sweeping knife; 12. Guide seat; 121. Sliding frame; 122. Stapler; 123. Driving gear; 124. Rack 2. Front upper seat; 21. Fixed jaw; 22. Fixed space 3. Press head; 31. Pressing cylinder; 32. Pressing seat; 33. Head body; 34. Spring; 35. Electric push rod; 36. Contact switch 4. Tightening assembly; 41. Arc-shaped tightener; 42. Pushing cylinder; 43. Clamping cylinder 5. Positioning assembly; 51. Positioning seat; 52. Positioning cylinder; 53. Positioning clamping plate; 54. Adjusting plate Specific implementation mode The following further details the present application through specific embodiments in conjunction with the accompanying drawings.

[0032] Embodiment 1 A front upper machine, as Figure 1 and Figure 2 shown, includes a workbench 1, on which a front upper seat 2 is arranged. The front upper seat 2 is arranged corresponding to the shape of the semi-finished product. A press head 3 and a sweeping knife 11 are also arranged corresponding to the front upper seat 2 on the workbench 1. The press head 3 is slidably connected to the workbench 1 and slides along the direction perpendicular to the workbench 1. The press head 3 is arranged on the upper seat of the front upper seat 2 and is used to squeeze the semi-finished product. The sweeping knife 11 is arranged beside the front upper seat 2 and is used to bind the semi-finished product. A tightening assembly 4 is also arranged on the workbench 1. The tightening assembly 4 is arranged on the upper side of the sweeping knife 11. The tightening assembly 4 is slidably connected to the workbench 1 and is used to tighten the semi-finished product from both sides and the front end of the semi-finished product. Specifically in implementation, the front upper seat 2 is slidably connected to the workbench 1 and is driven by a cylinder. The front upper seat 2 slides along the direction perpendicular to the workbench 1. The front upper seat 2 can adjust its position before processing so that semi-finished products of various different sizes can be aligned for processing. During processing, the semi-finished product is the upper of a shoe with an unprocessed sole at the bottom, and a support is filled in the upper for processing. During processing, the semi-finished product needs to be placed on the front upper seat 2, clamped by the tightening assembly 4, and the semi-finished product is pressed by the press head 3. When pressing, the sweeping knife 11 rotates to push the front upper to fold towards the middle of the upper to complete the binding.

[0033] As Figure 1 and Figure 2 shown, a plurality of fixed jaws 21 driven by cylinders are arranged beside the front upper seat 2. A fixed space 22 is arranged between the front upper seat 2 and the fixed jaws 21. The fixed space 22 is for the semi-finished product to extend into. The fixed jaws 21 are arranged around the front upper seat 2. The fixed jaws 21 can clamp the semi-finished product at the fixed space 22. Specifically in implementation, the fixed jaws 21 adopt common pneumatic jaws. When the semi-finished product is placed at the fixed space 22, the product can be clamped by the fixed jaws 21. As Figure 2 andFigure 3 As shown in the figure, the tightening assembly 4 includes an arc-shaped tightener 41. The arc-shaped tightener 41 is elastic and deformable. The arc-shaped tightener 41 is slidably connected to the workbench 1. The tightening assembly 4 further includes a pushing cylinder 42 and a clamping cylinder 43. The pushing cylinder 42 and the clamping cylinder 43 are both fixedly installed on the workbench 1. The piston rod of the pushing cylinder 42 is fixedly connected to the arc-shaped tightener 41 and is connected to the middle of the arc-shaped tightener 41. The clamping cylinder 43 is arranged on both sides of the arc-shaped tightener 41. The arc-shaped tightener 41 can push the arc-shaped tightener 41 to deform towards the middle. During specific implementation, the pushing cylinder 42 can push the arc-shaped tightener 41 towards the front vamp seat 2. When it moves to the side of the front vamp seat 2, the moved arc-shaped tightener 41 can be pushed by the clamping cylinder 43, and the arc-shaped tightener 41 can be pressed towards the middle, so as to realize the tightening of the shoe vamp, which is convenient for subsequent processing.

[0034] As Figure 2 and Figure 3 shown in the figure, the sweeping knife 11 is arranged between the arc-shaped tightener 41 and the front vamp seat 2. The sweeping knife 11 is arranged on both sides of the arc-shaped tightener 41. The sweeping knife 11 is rotatably connected to the workbench 1 and is driven by a motor. The sweeping knife 11 can push the vamp knitting from both sides of the semi-finished product. During specific implementation, the sweeping knife 11 can sweep under the drive of the motor to knit the semi-finished product, thus completing the processing.

[0035] As Figure 3 shown in the figure, a pressing cylinder 31 is arranged on the workbench 1 corresponding to the pressing head 3. The pressing cylinder 31 is fixedly connected to the workbench 1. The piston rod of the pressing cylinder 31 is fixedly connected to the pressing head 3. The pressing cylinder 31 can push the pressing head 3 to move. The pressing head 3 includes a pressing seat 32 and a head body 33. The pressing seat 32 is arranged at one end close to the pressing cylinder 31. The pressing seat 32 is slidably connected to the head body 33. A spring 34 is arranged between the pressing seat 32 and the head body 33. One end of the spring 34 is fixedly connected to the pressing seat 32, and the other end of the spring 34 is fixedly connected to the head body 33. The spring 34 has a tendency to push the head body 33 to move away from the pressing seat 32. During specific implementation, the head body 33 has a certain buffering effect, reducing the situation of shoe vamp damage caused by excessive pressure during extrusion.

[0036] As Figure 3As shown, the indenter 3 further includes an electric push rod 35. One end of the electric push rod 35 is fixedly connected to the piston rod of the pressing cylinder 31, and the other end of the electric push rod 35 is fixedly connected to the pressing seat 32. The electric push rod 35 can push the pressing seat 32 to move away from the pressing cylinder 31. The pressing cylinder 31 is electrically connected to the sweeping knife 11. When the sweeping knife 11 starts to move, the pressing cylinder 31 pushes the indenter 3 towards the semi-finished product. The electric push rod 35 is also electrically connected to the sweeping knife 11. When the sweeping knife 11 finishes moving, the electric push rod 35 pushes the pressing seat 32 to move away from the pressing cylinder 31. Specifically in implementation, during processing, the head body 33 moves synchronously with the sweeping knife 11 during the first extrusion, and can stabilize the position of the semi-finished product during the shoe upper binding process, reducing the situation where the displacement of the semi-finished product affects the processing quality. When the sweeping knife 11 completes the action, the electric push rod 35 can perform a secondary extrusion on the semi-finished product, thereby increasing the fitting degree of the shoe tip and further improving the product quality.

[0037] As Figure 3 shown, a contact switch 36 is further provided in the pressing seat 32. The contact switch 36 is electrically connected to the electric push rod 35. When the head body 33 touches the contact switch 36, the electric push rod 35 can push the pressing seat 32 to move away from the pressing cylinder 31 for the second time. Specifically in implementation, when the contact switch 36 is triggered, the material of the shoe tip is usually relatively hard at this time, such as a TPU shoe tip, and will not be greatly deformed by being pressed by the head body 33. At this time, the head body 33 will slide towards the pressing seat 32 to trigger the contact switch 36, compensating the pressure for the shoe tip at the end of the processing, further improving the processing quality and also improving the versatility.

[0038] As Figure 2 and Figure 3 shown, a positioning component 5 is further provided on the workbench 1. The positioning component 5 is arranged on the lower side of the front upper seat 2. The positioning component 5 includes a positioning seat 51 and a positioning cylinder 52. The positioning cylinder 52 is fixedly connected to the workbench 1, and the piston rod of the positioning cylinder 52 is fixedly connected to the positioning seat 51. The positioning seat 51 is set corresponding to the shape of the semi-finished product and is used for the semi-finished product to be embedded. The positioning cylinder 52 can push the positioning seat 51 towards the front upper seat 2 to move. Specifically in implementation, the positioning seat 51 is set corresponding to the shape of the shoe heel. Before processing, the positioning cylinder 52 can be first placed into the positioning seat 51, and the positioning cylinder 52 can push the positioning seat 51 towards the shoe upper seat to position the semi-finished product on the shoe upper seat for processing.

[0039] Working principle: During processing, the semi-finished product is processed by the fixed clamping jaws 21, thereby improving the stability during processing, reducing the situation where the semi-finished product shifts during processing and affects the shoe upper binding, and improving the shoe upper binding quality.

[0040] Embodiment 2 As Figure 4 and Figure 5As shown, the main difference between Example 2 and Example 1 is that a positioning clamp 53 is provided in the positioning seat 51 of Example 2, and the positioning clamp 53 is provided on both sides of the positioning seat 51 and can clamp the semi-finished product. A guide seat 12 is also provided on the workbench 1, and the guide seat 12 is provided between the upper seat and the positioning seat 51. A sliding frame 121 is slidably connected to the guide seat 12, and two nail guns 122 are provided at both ends of the sliding frame 121. A driving gear 123 is also provided on the guide seat 12, and the driving gear 123 is threadedly connected to the guide seat 12, and the driving gear 123 can abut the semi-finished product. A rack 124 is provided on the sliding frame 121 corresponding to the driving gear 123, and the rack 124 is meshed with the driving gear 123. A contact switch 36 is also provided on the nail gun 122. In specific implementation, there are multiple driving gears 123 and they are all arranged on a shaft threadedly connected to the guide seat 12. Since a support is provided in the semi-finished product, when the positioning seat 51 pushes the semi-finished product toward the upper seat, the semi-finished product will abut against the driving gear 123 to drive the driving gear 123 to rotate. At this time, the sliding frame 121 is driven downward and the semi-finished product will not be nailed. When the processing is completed, the positioning seat 51 drives the semi-finished product to reset. At this time, the semi-finished product abuts against the driving gear 123. The driving gear 123 can not only flatten the semi-finished product to a certain extent, but also drive the sliding frame 121 upward. At this time, the nail gun 122 will continuously push the position of the semi-finished product after the lasting is completed and trigger the contact switch 36 to nail the product with the lasting completed. The nail gun 122 is pneumatically driven to nail the semi-finished product, thereby completing the subsequent nailing process that requires manual work in advance.

[0041] like Figure 4 and Figure 5 As shown, an adjustment plate 54 is also provided in the positioning seat 51, and the adjustment plate 54 is provided in the middle of the positioning seat 51. The adjustment plate 54 is rotatably connected to the positioning seat 51 and driven by a motor. In specific implementation, when the semi-finished product cannot abut against the driving gear 123, the angle of the semi-finished product can be adjusted by the adjustment plate 54 so that the semi-finished product can abut against the driving gear 123, thereby reducing the failure.

[0042] Working principle: The basic working principle is the same as that of the first embodiment, but a mechanism is added to determine the position of the semi-finished product and automatically nail the semi-finished product after the lasting is completed, thereby further improving the processing efficiency.

[0043] The above are preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A toe lasting machine, characterized in that: The invention comprises a workbench (1), wherein a front support seat (2) is arranged on the workbench (1), wherein the front support seat (2) is arranged corresponding to the shape of the semi-finished product, wherein a pressing head (3) and a sweeping knife (11) are also arranged on the workbench (1) corresponding to the front support seat (2), wherein the pressing head (3) is slidably connected to the workbench (1) and slides in a direction perpendicular to the workbench (1), wherein the pressing head (3) is arranged on the upper seat of the front support seat (2) and is used for pressing the semi-finished product, wherein the sweeping knife (11) is arranged beside the front support seat (2) and is used for joining the semi-finished product, wherein a tightening assembly (4) is also arranged on the workbench (1), wherein the tightening assembly (4) is arranged on the upper side of the sweeping knife (11), wherein the tightening assembly (4) is slidably connected to the workbench (1), and wherein the tightening assembly (4) is used for tightening the semi-finished product from both sides and the front end of the semi-finished product; A plurality of fixed clamps (21) driven by a cylinder are arranged beside the front support seat (2); a fixed space (22) is arranged between the front support seat (2) and the fixed clamps (21); the fixed space (22) is for semi-finished products to extend into; the fixed clamps (21) are arranged around the front support seat (2); and the fixed clamps (21) can clamp the semi-finished products in the fixed space (22).

2. A toe lasting machine according to claim 1, characterized in that: The front support seat (2) is slidably connected to the workbench (1) and driven by a cylinder, and the front support seat (2) slides in a direction perpendicular to the workbench (1).

3. A toe lasting machine according to claim 1, characterized in that: The tightening assembly (4) comprises an arc-shaped tightener (41), the arc-shaped tightener (41) is elastic and can be deformed, the arc-shaped tightener (41) is slidably connected to the workbench (1), and the tightening assembly (4) further comprises a pushing cylinder (42) and a clamping cylinder (43), the pushing cylinder (42) and the clamping cylinder (43) are both fixedly mounted on the workbench (1), the piston rod of the pushing cylinder (42) is fixedly connected to the arc-shaped tightener (41) and connected to the middle of the arc-shaped tightener (41), the clamping cylinder (43) is arranged on both sides of the arc-shaped tightener (41), and the arc-shaped tightener (41) can push the arc-shaped tightener (41) to deform toward the middle.

4. A toe lasting machine according to claim 3, characterized in that: The sweeping knife (11) is arranged between the arc-shaped tightening device (41) and the front lasting seat (2), and the sweeping knife (11) is arranged on both sides of the arc-shaped tightening device (41). The sweeping knife (11) is rotatably connected to the workbench (1) and driven by a motor. The sweeping knife (11) can push the lasting from both sides of the semi-finished product.

5. A toe lasting machine according to claim 4, characterized in that: A pressing cylinder (31) is provided on the workbench (1) corresponding to the pressing head (3); the pressing cylinder (31) is fixedly connected to the workbench (1); a piston rod of the pressing cylinder (31) is fixedly connected to the pressing head (3); and the pressing cylinder (31) can push the pressing head (3) to move.

6. A toe lasting machine according to claim 5, characterized in that: The pressure head (3) comprises a pressure seat (32) and a head body (33); the pressure seat (32) is arranged at one end close to the clamping cylinder (31); the pressure seat (32) and the head body (33) are slidably connected; a spring (34) is arranged between the pressure seat (32) and the head body (33); one end of the spring (34) is fixedly connected to the pressure seat (32); the other end of the spring (34) is fixedly connected to the head body (33); the spring (34) has a tendency to push the head body (33) to move away from the pressure seat (32).

7. A toe lasting machine according to claim 6, characterized in that: The pressing head (3) further comprises an electric push rod (35), one end of which is fixedly connected to the piston rod of the pressing cylinder (31), and the other end of which is fixedly connected to the pressing seat (32). The electric push rod (35) can push the pressing seat (32) to move away from the pressing cylinder (31).

8. A toe lasting machine according to claim 7, characterized in that: The clamping cylinder (31) is electrically connected to the sweeping knife (11). When the sweeping knife (11) starts to move, the clamping cylinder (31) pushes the pressure head (3) to move toward the semi-finished product. The electric push rod (35) is also electrically connected to the sweeping knife (11). When the sweeping knife (11) ends to move, the electric push rod (35) pushes the pressure seat (32) to move away from the clamping cylinder (31).

9. A toe lasting machine according to claim 8, characterized in that: A contact switch (36) is also provided in the pressure seat (32), and the contact switch (36) is electrically connected to the electric push rod (35). When the head body (33) abuts against the contact switch (36), the electric push rod (35) can push the pressure seat (32) a second time to move away from the clamping cylinder (31).

10. The toe lasting machine according to claim 1, characterized in that: The workbench (1) is also provided with a positioning assembly (5), the positioning assembly (5) is arranged on the lower side of the front support seat (2), the positioning assembly (5) comprises a positioning seat (51) and a positioning cylinder (52), the positioning cylinder (52) is fixedly connected to the workbench (1), the piston rod of the positioning cylinder (52) is fixedly connected to the positioning seat (51), the positioning seat (51) is arranged corresponding to the shape of the semi-finished product and is used for the semi-finished product to be embedded, and the positioning cylinder (52) can push the positioning seat (51) to move toward the front support seat (2).

Citation Information

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